Search Results - "León, Ramón de"

Plasma surface-modification of cellulose nanocrystals: a green alternative towards mechanical reinforcement of ABS by Alanis, Andrés, Valdés, Josué Hernández, María Guadalupe, Neira-Velázquez, Lopez, Ricardo, Mendoza, Ricardo, Mathew, Aji P, Díaz de León, Ramón, Valencia, Luis

“…This article proposes a strategy to functionalize cellulose nanocrystals by means of plasma-surface modification utilizing monomers of different nature:…”
Get full text

Controlled (Co)Polymerization of Methacrylates Using a Novel Symmetrical Trithiocarbonate RAFT Agent Bearing Diphenylmethyl Groups by Robles Grana, Alvaro Leonel, Maldonado-Textle, Hortensia, Torres-Lubián, José Román, St Thomas, Claude, Díaz de León, Ramón, Olivares-Romero, José Luis, Valencia, Luis, Enríquez-Medrano, Francisco Javier

“…Herein, we report a novel type of symmetrical trithiocarbonate chain transfer agent (CTA) based diphenylmethyl as R groups. The utilization of this CTA in the…”
Get full text

Chitosan-coated magnetic nanoparticles prepared in one step by reverse microemulsion precipitation by López, Raúl G, Pineda, María G, Hurtado, Gilberto, León, Ramón Díaz de, Fernández, Salvador, Saade, Hened, Bueno, Darío

“…Chitosan-coated magnetic nanoparticles (CMNP) were obtained at 70 °C and 80 °C in a one-step method, which comprises precipitation in reverse microemulsion in…”
Get full text

Fully Bio-Based Elastomer Nanocomposites Comprising Polyfarnesene Reinforced with Plasma-Modified Cellulose Nanocrystals by Magaña, Ilse, Georgouvelas, Dimitrios, Handa, Rishab, Neira Velázquez, María Guadalupe, López González, Héctor Ricardo, Enríquez Medrano, Francisco Javier, Díaz de León, Ramón, Valencia, Luis

“…This article proposes a process to prepare fully bio-based elastomer nanocomposites based on polyfarnesene and cellulose nanocrystals (CNC). To improve the…”
Get full text

Selective polymerization of a new bifunctional monomer via free radical polymerization and oxidative route by Conejo-Dávila, Alain S., Hernández-Escobar, Claudia A., Vega-Rios, Alejandro, Rodríguez-Sánchez, Isis, Estrada-Monje, Anayansi, de León-Gómez, Ramón E. Díaz, Zaragoza-Contreras, E. Armando

“…[Display omitted] •The anilinium and vinyl functional groups are selectively polymerized.•The monomer is susceptible of copolymerization via free radical…”
Get full text

Introducing random bio-terpene segments to high cis -polybutadiene: making elastomeric materials more sustainable by González-Zapata, José Luis, Enríquez-Medrano, Francisco Javier, López González, Héctor Ricardo, Revilla-Vázquez, Javier, Carrizales, Ricardo Mendoza, Georgouvelas, Dimitrios, Valencia, Luis, Díaz de León Gómez, Ramón Enrique

“…In this work, we explore the statistical copolymerization of 1,3-butadiene with the terpenic monomers myrcene and farnesene, carried out coordination…”
Get full text

Evaluation of the Antimicrobial, Thermal, Mechanical, and Barrier Properties of Corn Starch-Chitosan Biodegradable Films Reinforced with Cellulose Nanocrystals by Díaz-Cruz, Claudio Alonso, Caicedo, Carolina, Jiménez-Regalado, Enrique Javier, Díaz de León, Ramón, López-González, Ricardo, Aguirre-Loredo, Rocio Yaneli

“…Packaging materials play an essential role in the preservation and marketing of food and other products. To improve their conservation capacity, antimicrobial…”
Get full text

Surface Modification of Cellulose Nanocrystals with Lactone Monomers via Plasma-Induced Polymerization and Their Application in ABS Nanocomposites by Díaz de León, Ramón, Guzmán, Ediberto, López González, Ricardo, Díaz Elizondo, Alejandro, Magaña, Ilse, Neira, Guadalupe, Castañeda Facio, Adali, Valencia, Luis

“…The growing concern for environmental problems has motivated the use of materials obtained from bio-based resources such as cellulose nanocrystals which have a…”
Get full text

Terpene Coordinative Chain Transfer Polymerization: Understanding the Process through Kinetic Modeling by Ubaldo-Alarcón, Andrés, Soriano-Corral, Florentino, Córdova, Teresa, Zapata-González, Iván, Díaz-de-León, Ramón

“…The interest in the Coordinative Chain Transfer Polymerization (CCTP) of a family of naturally occurring hydrocarbon monomers, namely terpenes, for the…”
Get full text

Coordinative Chain Transfer Polymerization of Sustainable Terpene Monomers Using a Neodymium-Based Catalyst System by Córdova, Teresa, Enríquez-Medrano, Francisco Javier, Cartagena, Eduardo Martínez, Villanueva, Arnulfo Banda, Valencia, Luis, Álvarez, Edgar Nazareo Cabrera, González, Ricardo López, Díaz-de-León, Ramón

“…The present investigation involves the coordinative chain transfer polymerization (CCTP) of biobased terpenes in order to obtain sustainable polymers from…”
Get full text

Biomimetic Synthesis of PANI/Graphitic Oxidized Carbon Nitride for Supercapacitor Applications by Martínez-Cartagena, Manuel Eduardo, Bernal-Martínez, Juan, Banda-Villanueva, Arnulfo, Enríquez-Medrano, Javier, Lechuga-Islas, Víctor D., Magaña, Ilse, Córdova, Teresa, Morales-Acosta, Diana, Olivares-Romero, José Luis, Díaz-de-León, Ramón

“…Polyaniline (PANI) composites have gained momentum as supercapacitive materials due to their high energy density and power density. However, some drawbacks in…”
Get full text

Resonance properties of Ag-ZnO nanostructures at terahertz frequencies by Sanchez, John E, Díaz de León, Ramón, Mendoza-Santoyo, Fernando, González, Gabriel, José-Yacaman, Miguel, Ponce, Arturo, González, Francisco Javier

“…Nanoantennas have been fabricated by scaling down traditional antenna designs using nanolithographic techniques and testing them at different optical…”
Get full text

Thermoplastic elastomers based on high-density polyethylene, ethylene-propylene-diene terpolymer, and ground tire rubber dynamically vulcanized with dicumyl peroxide by Céspedes, Rosa Idalia Narro, Gámez, José Francisco Hernández, Velázquez, María Guadalupe Neira, Belmontes, Felipe Ávalos, de León, Ramón Enrique Díaz, Fernández, Oliverio Santiago Rodríguez, Orta, Carlos Alberto Ávila, Hernández, Ernesto Hernández

“…ABSTRACT Thermoplastic vulcanizates (TPVs) based on high‐density polyethylene (HDPE), ethylene–propylene–diene terpolymer (EPDM), and ground tire rubber (GTR)…”
Get full text

Development of Biodegradable Polyesters: Study of Variations in Their Morphological and Thermal Properties through Changes in Composition of Alkyl-Substituted (ε-DL) and Non-Substituted (ε-CL, EB, L-LA) Monomers by Robles-González, Felipe, Rodríguez-Hernández, Teresa, Ledezma-Pérez, Antonio S., Díaz de León, Ramón, De Jesús-Téllez, Marco A., López-González, Héctor Ricardo

“…Three series of polyesters based on monomer combinations of ε-caprolactone (ε-CL), ethylene brassylate (EB), and l-Lactide (LLA) with the alkyl substituted…”
Get full text

Synthesis and Vulcanization of Polymyrcene and Polyfarnesene Bio-Based Rubbers: Influence of the Chemical Structure over the Vulcanization Process and Mechanical Properties by Banda-Villanueva, Arnulfo, González-Zapata, José Luis, Martínez-Cartagena, Manuel Eduardo, Magaña, Ilse, Córdova, Teresa, López, Ricardo, Valencia, Luis, Medina, Sergio García, Rodríguez, Alejandro Medina, Soriano, Florentino, Díaz de León, Ramón

“…The overuse of fossil-based resources to produce thermoplastic materials and rubbers is dramatically affecting the environment, reflected in its clearest way…”
Get full text

Influence of Ethylene Plasma Treatment of Agave Fiber on the Cellular Morphology and Compressive Properties of Low-Density Polyethylene/Ethylene Vinyl Acetate Copolymer/Agave Fiber Composite Foams by Soriano-Corral, F., Calva-Nava, L. A., Hernández-Gámez, J. F., Hernández-Hernández, E., González-Morones, P., Ávila-Orta, C. A., Soria-Arguello, G., Fonseca-Florido, Heidi A., Covarrubias-Gordillo, Carlos A., Díaz de León-Gómez, Ramón E.

“…Agave fibers (AF) were incorporated either pristine (AFp) or surface treated by ethylene plasma (AFm) in low-density polyethylene (LDPE)/ethylene vinyl acetate…”
Get full text

A Comparative Study of Biomimetic Synthesis of EDOT-Pyrrole and EDOT-Aniline Copolymers by Peroxidase-like Catalysts: Towards Tunable Semiconductive Organic Materials by Martínez-Cartagena, Manuel Eduardo, Bernal-Martínez, Juan, Banda-Villanueva, Arnulfo, Magaña, Ilse, Córdova, Teresa, Ledezma-Pérez, Antonio, Fernández-Tavizón, Salvador, Díaz de León, Ramón

“…It has been two decades since biomimetic synthesis of conducting polymers were first reported, however, the systematic investigation of how catalysts influence…”
Get full text

Easy Synthesis of Doped Graphitic Carbon Nitride Nanosheets as New Material for Enhanced DNA Extraction from Vegetal Tissues Using a Simple and Fast Protocol by Martínez-Cartagena, Manuel Eduardo, Bernal-Martínez, Juan, Banda-Villanueva, Arnulfo, Lechuga-Islas, Víctor D., Córdova, Teresa, Magaña, Ilse, Torres-Lubián, José Román, Fernández-Tavizón, Salvador, Romero-García, Jorge, Rodríguez-Hernández, Ana Margarita, Díaz-de-León, Ramón

“…Conventional and commercially available DNA extraction methods have several limitations regarding, for instance, contamination, and complex and slow…”
Get full text

Soft-sensor estimation via parameter fitting and dynamic optimization in an experimental batch butadiene homopolymerization reactor by Flores-Tlacuahuac, Antonio, Saldívar-Guerra, Enrique, de León, Ramón Díaz, López-González, Ricardo, Rodriguez-Guadarrama, Luis Antonio

“…In this work, we address modeling and experimental tasks to develop an industrial process for the anionic polymerization of butadiene, which is a key compound…”
Get full text

VERBOS DEFECTIVOS, ENTRE LA REGULARIDAD Y LA IRREGULARIDAD: EL CASO DE ABOLIR by de León, Ramón F. Zacarías Ponce

“…En este trabajo analizamos la defectividad verbal como una manifestación de las vacilaciones que experimentan los hablantes al elegir un tipo de flexión,…”
Get full text